Pith Number

pith:OZVH7MAC

pith:2024:OZVH7MAC33ZPVNVM27H4SHCU2R

not attested not anchored not stored refs pending

Biosignatures from pre-oxygen photosynthesising life on TRAPPIST-1e

Aaron A. Rogers, Chadiga Khalek, Eric Hebrard, F. Hugo Lambert, Jack W. G. Smith, Jake K. Eager-Nash, James Bishop, James W. McDermott, Lucy A. Grain, Mei Ting Mak, Nathan J. Mayne, Peter Andrews, Robert J. Ridgway, Stuart J. Daines, Thomas J. Boxer, Timothy M. Lenton

arxiv:2404.11611 v1 · 2024-04-17 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OZVH7MAC33ZPVNVM27H4SHCU2R}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T08:09:10.920716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

766a7fb002def2fab6acd7cfc91c54d465c9e0282c9d7e3d76585957bb272bb9

Aliases

arxiv: 2404.11611 · arxiv_version: 2404.11611v1 · doi: 10.48550/arxiv.2404.11611 · pith_short_12: OZVH7MAC33ZP · pith_short_16: OZVH7MAC33ZPVNVM · pith_short_8: OZVH7MAC

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OZVH7MAC33ZPVNVM27H4SHCU2R \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 766a7fb002def2fab6acd7cfc91c54d465c9e0282c9d7e3d76585957bb272bb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7236804ee6e016082575ff167bd4187108555a63f87be18da5ff71568f34265",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2024-04-17T17:58:58Z",
    "title_canon_sha256": "be84277789fb0a2a00e95506d60ea5a4b9a0e715ff998474674f15283c863f92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.11611",
    "kind": "arxiv",
    "version": 1
  }
}